[PATCH v4 3/4] pack-bitmap.c: break out of the bitmap loop early if not tracing

[Teng Long <dyroneteng@gmail.com>]

From: Jeff King <peff@peff.net>

When we successfully open a bitmap, we will continue to try to open
other packs, and when trace2 is enabled, we will report any subsequent
bitmap ignored information in the log. So when we find that trace2 is
not enabled, we can actually terminate the loop early.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Teng Long <dyroneteng@gmail.com>
---
 pack-bitmap.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/pack-bitmap.c b/pack-bitmap.c
index aaa2d9a104..3b6c2f804a 100644
--- a/pack-bitmap.c
+++ b/pack-bitmap.c
@@ -527,8 +527,15 @@ static int open_pack_bitmap(struct repository *r,
 	assert(!bitmap_git->map);
 
 	for (p = get_all_packs(r); p; p = p->next) {
-		if (open_pack_bitmap_1(bitmap_git, p) == 0)
+		if (open_pack_bitmap_1(bitmap_git, p) == 0) {
 			ret = 0;
+			/*
+			 * The only reason to keep looking is to report
+			 * duplicates.
+			 */
+			if (!trace2_is_enabled())
+				break;
+		}
 	}
 
 	return ret;
-- 
2.38.1.383.g9d5a491887b